480 lines
14 KiB
Awk
480 lines
14 KiB
Awk
# Copyright (C) 2003-2014 Free Software Foundation, Inc.
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# Contributed by Kelley Cook, June 2004.
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# Original code from Neil Booth, May 2003.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 3, or (at your option) any
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# later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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# This Awk script reads in the option records generated from
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# opt-gather.awk, combines the flags of duplicate options and generates a
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# C header file.
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#
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# This program uses functions from opt-functions.awk and code from
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# opt-read.awk.
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# Usage: awk -f opt-functions.awk -f opt-read.awk -f opth-gen.awk \
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# < inputfile > options.h
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# Dump out an enumeration into a .h file.
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# Combine the flags of duplicate options.
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END {
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print "/* This file is auto-generated by opth-gen.awk. */"
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print ""
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print "#ifndef OPTIONS_H"
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print "#define OPTIONS_H"
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print ""
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print "#include \"flag-types.h\""
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print ""
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if (n_extra_h_includes > 0) {
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for (i = 0; i < n_extra_h_includes; i++) {
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print "#include " quote extra_h_includes[i] quote
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}
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print ""
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}
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print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
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print "#ifndef GENERATOR_FILE"
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print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
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print "struct GTY(()) gcc_options"
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print "#else"
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print "struct gcc_options"
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print "#endif"
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print "{"
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print "#endif"
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for (i = 0; i < n_extra_vars; i++) {
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var = extra_vars[i]
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sub(" *=.*", "", var)
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orig_var = var
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name = var
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type = var
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type_after = var
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sub("^.*[ *]", "", name)
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sub("\\[.*\\]$", "", name)
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sub("\\[.*\\]$", "", type)
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sub(" *" name "$", "", type)
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sub("^.*" name, "", type_after)
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var_seen[name] = 1
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print "#ifdef GENERATOR_FILE"
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print "extern " orig_var ";"
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print "#else"
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print " " type " x_" name type_after ";"
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print "#define " name " global_options.x_" name
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print "#endif"
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}
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for (i = 0; i < n_opts; i++) {
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if (flag_set_p("Save", flags[i]))
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have_save = 1;
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name = var_name(flags[i]);
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if (name == "")
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continue;
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if (name in var_seen)
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continue;
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var_seen[name] = 1;
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print "#ifdef GENERATOR_FILE"
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print "extern " var_type(flags[i]) name ";"
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print "#else"
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print " " var_type(flags[i]) "x_" name ";"
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print "#define " name " global_options.x_" name
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print "#endif"
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}
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for (i = 0; i < n_opts; i++) {
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name = static_var(opts[i], flags[i]);
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if (name != "") {
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print "#ifndef GENERATOR_FILE"
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print " " var_type(flags[i]) "x_" name ";"
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print "#define x_" name " do_not_use"
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print "#endif"
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}
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}
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for (i = 0; i < n_opts; i++) {
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if (flag_set_p("SetByCombined", flags[i])) {
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print "#ifndef GENERATOR_FILE"
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print " bool frontend_set_" var_name(flags[i]) ";"
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print "#endif"
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}
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}
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print "#ifndef GENERATOR_FILE"
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print "};"
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print "extern struct gcc_options global_options;"
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print "extern const struct gcc_options global_options_init;"
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print "extern struct gcc_options global_options_set;"
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print "#define target_flags_explicit global_options_set.x_target_flags"
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print "#endif"
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print "#endif"
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print ""
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# All of the optimization switches gathered together so they can be saved and restored.
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# This will allow attribute((cold)) to turn on space optimization.
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# Change the type of normal switches from int to unsigned char to save space.
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# Also, order the structure so that pointer fields occur first, then int
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# fields, and then char fields to provide the best packing.
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print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)"
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print ""
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print "/* Structure to save/restore optimization and target specific options. */";
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print "struct GTY(()) cl_optimization";
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print "{";
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n_opt_char = 2;
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n_opt_short = 0;
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n_opt_int = 0;
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n_opt_enum = 1;
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n_opt_other = 0;
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var_opt_char[0] = "unsigned char x_optimize";
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var_opt_char[1] = "unsigned char x_optimize_size";
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var_opt_enum[0] = "enum fp_contract_mode x_flag_fp_contract_mode";
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for (i = 0; i < n_opts; i++) {
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if (flag_set_p("Optimization", flags[i])) {
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name = var_name(flags[i])
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if(name == "")
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continue;
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if(name in var_opt_seen)
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continue;
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var_opt_seen[name]++;
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otype = var_type_struct(flags[i]);
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if (otype ~ "^((un)?signed +)?int *$")
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var_opt_int[n_opt_int++] = otype "x_" name;
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else if (otype ~ "^((un)?signed +)?short *$")
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var_opt_short[n_opt_short++] = otype "x_" name;
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else if (otype ~ "^((un)?signed +)?char *$")
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var_opt_char[n_opt_char++] = otype "x_" name;
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else if (otype ~ ("^enum +[_" alnum "]+ *$"))
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var_opt_enum[n_opt_enum++] = otype "x_" name;
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else
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var_opt_other[n_opt_other++] = otype "x_" name;
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}
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}
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for (i = 0; i < n_opt_other; i++) {
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print " " var_opt_other[i] ";";
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}
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for (i = 0; i < n_opt_int; i++) {
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print " " var_opt_int[i] ";";
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}
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for (i = 0; i < n_opt_enum; i++) {
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print " " var_opt_enum[i] ";";
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}
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for (i = 0; i < n_opt_short; i++) {
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print " " var_opt_short[i] ";";
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}
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for (i = 0; i < n_opt_char; i++) {
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print " " var_opt_char[i] ";";
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}
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print "};";
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print "";
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# Target and optimization save/restore/print functions.
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print "/* Structure to save/restore selected target specific options. */";
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print "struct GTY(()) cl_target_option";
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print "{";
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n_target_char = 0;
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n_target_short = 0;
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n_target_int = 0;
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n_target_enum = 0;
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n_target_other = 0;
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for (i = 0; i < n_target_save; i++) {
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if (target_save_decl[i] ~ "^((un)?signed +)?int +[_" alnum "]+$")
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var_target_int[n_target_int++] = target_save_decl[i];
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else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_" alnum "]+$")
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var_target_short[n_target_short++] = target_save_decl[i];
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else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_ " alnum "]+$")
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var_target_char[n_target_char++] = target_save_decl[i];
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else if (target_save_decl[i] ~ ("^enum +[_" alnum "]+ +[_" alnum "]+$")) {
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var_target_enum[n_target_enum++] = target_save_decl[i];
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}
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else
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var_target_other[n_target_other++] = target_save_decl[i];
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}
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if (have_save) {
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for (i = 0; i < n_opts; i++) {
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if (flag_set_p("Save", flags[i])) {
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name = var_name(flags[i])
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if(name == "")
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name = "target_flags";
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if(name in var_save_seen)
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continue;
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var_save_seen[name]++;
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otype = var_type_struct(flags[i])
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if (otype ~ "^((un)?signed +)?int *$")
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var_target_int[n_target_int++] = otype "x_" name;
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else if (otype ~ "^((un)?signed +)?short *$")
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var_target_short[n_target_short++] = otype "x_" name;
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else if (otype ~ "^((un)?signed +)?char *$")
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var_target_char[n_target_char++] = otype "x_" name;
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else if (otype ~ ("^enum +[_" alnum "]+ +[_" alnum "]+"))
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var_target_enum[n_target_enum++] = otype "x_" name;
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else
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var_target_other[n_target_other++] = otype "x_" name;
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}
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}
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} else {
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var_target_int[n_target_int++] = "int x_target_flags";
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}
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for (i = 0; i < n_target_other; i++) {
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print " " var_target_other[i] ";";
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}
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for (i = 0; i < n_target_enum; i++) {
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print " " var_target_enum[i] ";";
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}
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for (i = 0; i < n_target_int; i++) {
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print " " var_target_int[i] ";";
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}
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for (i = 0; i < n_target_short; i++) {
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print " " var_target_short[i] ";";
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}
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for (i = 0; i < n_target_char; i++) {
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print " " var_target_char[i] ";";
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}
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print "};";
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print "";
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print "";
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print "/* Save optimization variables into a structure. */"
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print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *);";
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print "";
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print "/* Restore optimization variables from a structure. */";
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print "extern void cl_optimization_restore (struct gcc_options *, struct cl_optimization *);";
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print "";
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print "/* Print optimization variables from a structure. */";
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print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);";
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print "";
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print "/* Save selected option variables into a structure. */"
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print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);";
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print "";
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print "/* Restore selected option variables from a structure. */"
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print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);";
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print "";
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print "/* Print target option variables from a structure. */";
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print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);";
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print "";
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print "/* Anything that includes tm.h, does not necessarily need this. */"
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print "#if !defined(GCC_TM_H)"
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print "#include \"input.h\" /* for location_t */"
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print "bool "
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print "common_handle_option_auto (struct gcc_options *opts, "
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print " struct gcc_options *opts_set, "
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print " const struct cl_decoded_option *decoded, "
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print " unsigned int lang_mask, int kind, "
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print " location_t loc, "
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print " const struct cl_option_handlers *handlers, "
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print " diagnostic_context *dc); "
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for (i = 0; i < n_langs; i++) {
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lang_name = lang_sanitized_name(langs[i]);
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print "bool "
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print lang_name "_handle_option_auto (struct gcc_options *opts, "
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print " struct gcc_options *opts_set, "
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print " size_t scode, const char *arg, int value, "
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print " unsigned int lang_mask, int kind, "
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print " location_t loc, "
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print " const struct cl_option_handlers *handlers, "
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print " diagnostic_context *dc); "
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}
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print "#endif";
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print "#endif";
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print "";
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for (i = 0; i < n_opts; i++) {
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name = opt_args("Mask", flags[i])
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if (name == "") {
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opt = opt_args("InverseMask", flags[i])
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if (opt ~ ",")
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name = nth_arg(0, opt)
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else
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name = opt
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}
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if (name != "" && mask_bits[name] == 0) {
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mask_bits[name] = 1
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vname = var_name(flags[i])
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mask = "MASK_"
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mask_1 = "1"
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if (vname != "") {
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mask = "OPTION_MASK_"
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if (host_wide_int[vname] == "yes")
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mask_1 = "HOST_WIDE_INT_1"
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} else
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extra_mask_bits[name] = 1
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print "#define " mask name " (" mask_1 " << " masknum[vname]++ ")"
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}
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}
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for (i = 0; i < n_extra_masks; i++) {
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if (extra_mask_bits[extra_masks[i]] == 0)
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print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
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}
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for (var in masknum) {
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if (var != "" && host_wide_int[var] == "yes") {
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print" #if defined(HOST_BITS_PER_WIDE_INT) && " masknum[var] " >= HOST_BITS_PER_WIDE_INT"
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print "#error too many masks for " var
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print "#endif"
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}
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else if (masknum[var] > 31) {
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if (var == "")
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print "#error too many target masks"
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else
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print "#error too many masks for " var
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}
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}
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print ""
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for (i = 0; i < n_opts; i++) {
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name = opt_args("Mask", flags[i])
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if (name == "") {
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opt = opt_args("InverseMask", flags[i])
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if (opt ~ ",")
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name = nth_arg(0, opt)
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else
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name = opt
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}
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if (name != "" && mask_macros[name] == 0) {
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mask_macros[name] = 1
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vname = var_name(flags[i])
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mask = "OPTION_MASK_"
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if (vname == "") {
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vname = "target_flags"
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mask = "MASK_"
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extra_mask_macros[name] = 1
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}
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print "#define TARGET_" name \
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" ((" vname " & " mask name ") != 0)"
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print "#define TARGET_" name "_P(" vname ")" \
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" ((" vname " & " mask name ") != 0)"
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}
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}
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for (i = 0; i < n_extra_masks; i++) {
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if (extra_mask_macros[extra_masks[i]] == 0)
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print "#define TARGET_" extra_masks[i] \
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" ((target_flags & MASK_" extra_masks[i] ") != 0)"
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}
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print ""
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for (i = 0; i < n_opts; i++) {
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opt = opt_args("InverseMask", flags[i])
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if (opt ~ ",") {
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vname = var_name(flags[i])
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mask = "OPTION_MASK_"
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if (vname == "") {
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vname = "target_flags"
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mask = "MASK_"
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}
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print "#define TARGET_" nth_arg(1, opt) \
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" ((" vname " & " mask nth_arg(0, opt) ") == 0)"
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}
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}
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print ""
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for (i = 0; i < n_langs; i++) {
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macros[i] = "CL_" lang_sanitized_name(langs[i])
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s = substr(" ", length (macros[i]))
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print "#define " macros[i] s " (1U << " i ")"
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}
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print "#define CL_LANG_ALL ((1U << " n_langs ") - 1)"
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print ""
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print "enum opt_code"
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print "{"
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for (i = 0; i < n_opts; i++)
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back_chain[i] = "N_OPTS";
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enum_value = 0
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for (i = 0; i < n_opts; i++) {
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# Combine the flags of identical switches. Switches
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# appear many times if they are handled by many front
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# ends, for example.
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while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
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flags[i + 1] = flags[i] " " flags[i + 1];
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i++;
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}
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len = length (opts[i]);
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enum = opt_enum(opts[i])
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enum_string = enum " = " enum_value ","
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# Aliases do not get enumeration names.
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if ((flag_set_p("Alias.*", flags[i]) \
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&& !flag_set_p("SeparateAlias", flags[i])) \
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|| flag_set_p("Ignore", flags[i])) {
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enum_string = "/* " enum_string " */"
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}
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# If this switch takes joined arguments, back-chain all
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# subsequent switches to it for which it is a prefix. If
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# a later switch S is a longer prefix of a switch T, T
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# will be back-chained to S in a later iteration of this
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# for() loop, which is what we want.
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if (flag_set_p("Joined.*", flags[i])) {
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for (j = i + 1; j < n_opts; j++) {
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if (substr (opts[j], 1, len) != opts[i])
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break;
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back_chain[j] = enum;
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}
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}
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s = substr(" ",
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length (enum_string))
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if (help[i] == "")
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hlp = "0"
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else
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hlp = "N_(\"" help[i] "\")";
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print " " enum_string s "/* -" opts[i] " */"
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enum_value++
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}
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print " N_OPTS,"
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print " OPT_SPECIAL_unknown,"
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print " OPT_SPECIAL_ignore,"
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print " OPT_SPECIAL_program_name,"
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print " OPT_SPECIAL_input_file"
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print "};"
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print ""
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print "#endif /* OPTIONS_H */"
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}
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